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Finding the Fourth Proportional to 235.58, 353.35 and 89.27

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Solution

The fourth proportional to 235.58, 353.35 and 89.27 is: 133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.58 : 353.35 = 89.27 : x
  2. Step 2: Convert to fraction form
    235.58/353.35 = 89.27/x
  3. Step 3: Cross multiply
    235.58x = 353.35 × 89.27
  4. Step 4: Simplify right side
    235.58x = 31,541.56
  5. Step 5: Solve for x
    x = 31,541.56/235.58
  6. Step 6: Final answer
    x = 133.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.